TITLE:
Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel
AUTHORS:
Valmik Bhavar, Sachin V. Patil, Prakash Kattire, P. P. Date, R. K. P. Singh
KEYWORDS:
Shot Peening, Surface Enhancement Techniques, Tool Steel
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.5 No.1,
January
16,
2017
ABSTRACT: Shot peening is one of the most popular surface enhancement technique used to improve fatigue performance of different materials. This paper focuses on to study the effect of different shot peening parameters on micro-structural and mechanical properties of DIN 1.2714 tool steel specimens. Shot peening treatments were carried out by varying shot size and peening intensity. X-ray stress analysis, micro-hardness testing and micro-structural analysis were performed to characterize these specimens. In addition, pin on disk wear testing was executed to recognize wear behavior of this shot peened tool steels. It was observed that along with compressive residual stress generation, shot peening also induces work hardening effect and modifies surface structure which are responsible for significant improvement in this tool steel.